Conning Towers Nautilus Park in Connecticut is a coastal hub defined by its naval heritage and maritime industry. The Conning Towers Nautilus Park Grand Prix covers 3.1 mi and consists of 13 corners, offering a forgiving introduction to the local streets that plays free in the browser with no account and no install. A 31 m height difference rewards drivers who maintain momentum over the rises, while the proximity of the Groton Bible Chapel and WSUB-AM provides a dense urban backdrop to an accessible circuit.